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デモ ヘルプ APIリファレンス デザイナ
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REDUCE

この関数は、配列の各値にLAMBDAを適用して配列を累積値に減らし、合計値をアキュムレータに返します。

書式

REDUCE([initial_value], array, lambda(accumulator, value))

引数

本関数には、次の引数があります。

引数

説明

[initial_value]

（オプション）アキュムレータの開始値を設定します。

array

縮小対象の配列。

lambda

配列を減らすために呼び出したLAMBDA。

LAMBDAはパラメータが2つあります。

  • accumulator: 最終結果として返された合計値。

  • value:　配列の各要素に適用される計算。

解説

無効なLAMBDA関数または誤ったパラメータ数が指定された場合、「不正なパラメータ」という#VALUE!エラーが返されます。

データ型

数値を返します。

サンプル

REDUCE(, A1:C2, LAMBDA(a,b,a+b^2))

REDUCE(1,Table2[Nums],LAMBDA(a,b,IF(b>50,a+b,a)))